John W. Whelan, M.D.
Internal Medicine Physician · Durham, NC
John W. Whelan, M.D. is an internal medicine physician with a practice address in Durham, North Carolina, and NPI 1932202116, issued on Sep 6, 2006. Check the license (North Carolina 96-01523, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.
- Name
- John W. Whelan
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 96-01523 NC
Self-reported in NPPES; status is on the state search - Practice location
- 4205 Ben Franklin Blvd, Durham, NC 27704
- Phone
- (919) 477-6900
- Enumerated
- Sep 6, 2006
- Record last updated
- Mar 18, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (919) 477-5081
- Medicaid ID
- 8986740 NC
- Medicare enrollment
- Enrolled (PECOS I20061025000208); accepts Medicare assignment
- Medical or professional school
- Jefferson Medical College Of Thomas Jefferson University, 1990
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 4,056 in North Carolina → Look up another NPI →
Also registered at 4205 Ben Franklin Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lucas Amuchastegui, PAPhysician Assistant1477008167
- Ruby Amanda Blaylock, PA-CPhysician Assistant1184000234
- David Bright, MD, PHARM DInternal Medicine Physician1003814666
- James Brown, MD, MPH, FACPInternal Medicine Physician1255338489
- Jamie DinerNurse Practitioner1801366141
- Lindsey Dudley, PA-CPhysician Assistant1952840837
Verify John W. Whelan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Carolina Medical Board
Search for license 96-01523Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.9 times the Medicare Part D claims of the average internal medicine physician in 2024
9,192 Medicare Part D claims for 597 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 86 claims were for opioids.
Most prescribed
- Atorvastatin Calcium565 claims
- Rosuvastatin Calcium538 claims
- Metoprolol Succinate381 claims
- Amlodipine Besylate322 claims
- Levothyroxine Sodium287 claims
- Jardiance263 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $221.47
11 payments; by number, the most common kind was food and beverage; the largest payer was Dexcom, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Legacy Healthcare Services IncDurham, NC
- Wake Specialty Physicians LLCRaleigh, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John W. Whelan among 4,056 internal medicine physician records in North Carolina
John W. Whelan, M.D. is one of 4,056 internal medicine physician records with a practice address in North Carolina. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 52% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated1990 · median 2004 among the 2,706 with a school on file
- Record last updated2015 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
380 internal medicine physician records list a practice address in Durham
They are 380 of the 13,451 NPPES records with a practice address in Durham, and 4,056 internal medicine physician records in North Carolina.
All 4,056 in North Carolina → Every provider in Durham → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Melinda Battaile, M.D.Durham, NC 277041831197094
- David Bright, MD, PHARM DDurham, NC 277041003814666
- James Brown, MD, MPH, FACPDurham, NC 277041255338489
- Amir Darwish, M.D.Durham, NC 277041699767665
- Walter Fowler, MD, PHDDurham, NC 277041013913631
- Susan Isbey, MDDurham, NC 277041396742730
- John Kallianos, MDDurham, NC 277041245231588
- Kombiz Klein, DODurham, NC 277041619976297
Common questions
What is John W. Whelan, M.D.'s NPI number?
John W. Whelan, M.D.'s National Provider Identifier (NPI) is 1932202116, issued on Sep 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John W. Whelan, M.D. located?
The NPPES record lists a practice address at 4205 Ben Franklin Blvd, Durham, NC, 27704. Phone: (919) 477-6900. Providers update this record themselves, so call before visiting.
How can I verify John W. Whelan, M.D.'s license?
NPPES lists North Carolina license number 96-01523, as entered by the provider. Search the North Carolina Medical Board at https://portal.ncmedboard.org/verification/search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John W. Whelan, M.D. prescribe under Medicare Part D?
In 2024, John W. Whelan, M.D. had 9,192 Medicare Part D claims for 597 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.